docs: update markdown slot

Author: ulivz

Diff for: packages/docs/docs/guide/markdown-slot.md

@@ -8,7 +8,7 @@ First, let's review the relationship between layout components and markdown file
 
 <diagram-markdown-slot-relationship/>
 
-markdown files are providers of metadata (page content, configuration, etc.), and layout components consume them. We can use `frontmatter` to define some metadata for common data types, but `frontmatter` is hard to do something about markdown / HTML, a complex metadata that involves pre-compile differences.
+Markdown files are providers of metadata (Page content, Configuration, etc.), while layout components consume them. We can use `frontmatter` to define some metadata for common data types, but `frontmatter` is hard to do something about markdown / HTML, a complex metadata that involves differences before and after compilation.
 
 Markdown Slot is to solve this kind of problem.
 

Diff for: packages/docs/docs/zh/guide/markdown-slot.md

@@ -8,9 +8,9 @@ VuePress 实现了一套针对 Markdown 的内容分发 API。通过这个特性
 
 <diagram-markdown-slot-relationship/>
 
-Markdown 文件是元数据（页面内容、配置等）的提供者，而布局组件负责消费他们。我们可以通过 frontmatter 来定义一些普通数据类型的元数据，但对于 Markdown/HTML 这种涉及到编译前差异的复杂元数据，frontmatter 却无能能力。
+Markdown 文件是元数据（页面内容、配置等）的提供者，而布局组件负责消费他们。我们可以通过 frontmatter 来定义一些普通数据类型的元数据，但对于 Markdown / HTML 这种涉及到编译前后差异的复杂元数据，frontmatter 却无能能力。
 
-Markdown 插槽便是为了解决这一类问题。
+Markdown 插槽便解决了这一类问题。
 
 ## 具名插槽